May be a bit of legend in this but .....
The rebuilt 1-11 was G-AZED a 414, originally D-ANDY of Bavarian. It was rebuilt at Hurn after being damaged. If I recall. This was all before the -500s joined the fleet so the others were TPL,TPJ which were both ex British Eagle ? and XCK, XCP which were both ex an American operator that is eluding me at the moment.
For better detail you need someone from Lasham, Luton, or Berlin for that is where the 1-11s operated early on.
Used to like the avionics fit on CK & CP but it's all a long time ago. so might not be totally correct.